tuning question

[Rawze]

BTW: The program that was sent to me overall is not hacked into oblivion like most that I see. It can be fixed by repairing the turbo flow and positioning tables, fixing the power/torque that was added at the bottom end, oxygen fuel tables corrected, other typical settings, etc. vs having to start over. It simply has some mistakes in it that can be corrected and the overall 'MM' portion of it updated to version '2021f'.

The 600hp is ok to stay if that is what someone wanted, however, I would suggest dropping the torque down to about 1920ft.lbs or so to improve engine longevity without giving up too much... and if someone wanted to really save fuel and lower its long term operating costs ... then maybe cutting it back to 525/1780 or something to make it a million mile+ engine again.

another FYI:
It has now been seen time and again that the difference in 2050 trq vs 1850 trq is about 2.5 more years of operating time for most trucks with ISX's in them and a cost savings average of about $19,600 over the lifetime. This simply by reducing engine torque from 2050 to 1850 and doing nothing else to it.